The role of stage light lens

When the stage kicked off, the audience was instantly attracted by the splendid and dazzling lights on the stage. However, it is necessary to design the stage lighting and equip some corresponding professional lighting equipment to achieve a successful stage effect. For a good stage lighting equipment, the lens helps to improve the light output efficiency of the lighting. A good light and a good lens are essential. Now we will share with you the basic knowledge of stage lighting.

The commonly used stage lights are mainly as follows:

1. Spotlight - The spotlight used on the stage refers to the use of a plano-convex condenser in front of the lamp. This kind of lamp can adjust the size of the light spot, the music beam is concentrated, and the diffused light next to it is relatively small.

2. Ribbed lights - in order to distinguish the above-mentioned plano-convex spotlights from scattered and soft, so they have a large diffusion area. Sometimes in order to control the diffused light, a title page is added in front of the mirror to block it, which is characterized by a large light area. , unlike the spotlight, which has the feeling of obvious spot, the shooting distance is relatively short, and the power is 1KW, 2KW and so on.

3. Back light - this kind of light has no lens in front, and its brightness is brighter than that of spotlight, so it is used when a strong light source and brightness are to be displayed on the stage. Its effect is better than other lamps, which is characterized by strong beam.

4. Imaging light - beam angle can be selected for various applications, such as the main feature is that the sliding shape can cut various square, diamond, triangle shapes on the spot, or project various patterns required.

5. Simple lamp - also known as PAR lamp, or beam lamp, its structure is to install the mirror in the cylinder to carry out the bulb. This kind of reflective bowl is also used to install the bromine tungsten bulb. The main function is to emit a relatively fixed beam, and the beam angle is wide and narrow. Various, the spot size cannot be adjusted.

In order to achieve the spot uniformity of the lens in the stage lighting optical system, it is necessary to design the optical scheme according to the requirements of the stage lighting on the spot area, illuminance and uniformity of the lens. The light intensity illuminance and spot uniformity of the optical lens will achieve a balanced effect, thereby improving the uniformity of the illumination spot and the utilization rate of energy.